Flour-bolt



(No Model.) I 5 sheets-sh et 1. H. J. GILBERT.

FLOUR BOLT. N0. 371.678. Patented Oct. 18, 1887- I .1 I i I l202132265863.- Z0 6: finfi'jwfon.

(No Model.) 5 Sheets-Sheet 2'.

HJJ. GILBERT.

' FLOUR BOLT.

Patented Oct. 18, 1887.

afine scs: 17111628502: Z0. 6. Jv'rdv'nshn. WM M N PETERS. mO -MSVIPMLWmhington, D4 C.

(No Model.) 5 Sheets-Sheet 3.

H.'-J. GILBERT.

FLOUR BOLT.

No. 371,678 Patented-Oct. 18, 1887.

a .5 Zaflnesam: Jnven 02": Z1 6'. Ji'rdz'ms'ian.

N. PETERS Phulmumogmphar, Waihington, D. Cv

5 Sheets-Sheet 4.

(No Model.)

H. J. GILBERT.

FLOUR BOLT.

No. 371,678. Patented 001:. 18, 1887.

I Zbiinsses: Z0. 6: firdz'nslan.

A; .lfiarneyi N. PETERS Photo-Lithogra h". Wflshir gtnn, 08.

(No Model.) 5 Sheets-Sheet 5.

H. J. GILBERT. FLOUR BOLT.

-No. 371,678. Patented 001;. 18, 1887;

N. PETERS, Plwin-Lithogmpfm, Wash nglom ac.

UNITED STATES PATENT OFFICE.

HENRY J. GILBERT, OF DAYTON, OHIO.

FL'OU R-BOLT.

SPECIFIGATIQN forming part of Letters Patent No. 371,678, dated October18, 1887.

Application filed December 18, 1885. Serial No. 186,031.

To all whom it may concern:

Be it known that'I, HENRY J. GILBERT, a citizen of the United States,residing at Dayton, in the county of Montgomery and State of Ohio, haveinvented certain new and useful Improvements in Flour-Bolts, of whichthe following is a full, clear,and exact description, reference beinghad to the accompanying drawings, forming part of this specification.

My invention relates to that class of flourbolts having revolving reelswhose axes are slightly inclined, which reels are covered withbolting-cloth of any desired size of mesh, and

into which the flour is introduced at one end Sheet 1,. is a sectionalend elevation of my improved flour-l)olt,taken through the line 00 w ofFig. 2. Fig. 2, Sheet 2, is a sectional side elevationof the samethrough the line 3 y of Fig. v 1. Fig. 3, Sheet 3, is a sectional endelevation of the reel,looking toward the tail of the same. Fig. 4, Sheet3, is an enlarged transverse section of the discharging-chute. Fig. 5,Sheet 3, is an enlarged end elevation of one of the buckets and itsoperating crank-arm. Fig. 6, Sheet 3, is a plan view of the same, partlyin section. Fig. 7, Sheet 4, is a sectional end elevation of aflour-bolt, taken through theline z z ofFig. 8, and showing my inventionas applied to a double reel, the outer one of which revolvesindependently of the inner one and at a different rate of speed. Fig. 8,Sheet 5, isa sectional side elevation of the same through the line 1 1of Fig. 7.-

The same letters of reference are used to indicate identical parts inall the figures.

A is the usual bolting-chest, of any suitable construction, opening intothe conveyer-boxes (No model.)

B,- as is usual in this class of bolts. In each end of the chest aresecured hollow cylindrical boxes O and D, the former of which isprovided with an upwardly-extending opening or spent, a, to receive theflour, and the latter of which is provided with a downwardly-extendingopeningorspout,b, to discharge thetailings. The boxes 0 and D also serveasjournals for the reel-shaft E, which may be driven by a pulley, F, inthe usual manner. Upon the shaft E, within the boXesU and D, areconveyer-blades c d-the former for delivering the flourinto the reel andthe latter for discharging the tailings through the opening or spout b.

The head end G of the reel has a circular opening, which fits over theinner end of the box O and comes slightly in contact with the flange 6,extending circumferentially around said box. The same construction may,as illustrated, be employed for the tail end H of the reel. Both endsare supported and keyed or otherwise fastened to the shaft E by curved'or bent arms I, which, if desired, may be integral with the ends.

The bolting-cloth J is secured to the ends G H in the usual or anysuitable manner, and may be supported by any number of intermediaterings, K, carried upon spokes L, extending from hubs secured to theshaft E.

Within the reel at equal distances, near its circumference and extendingthe entire length of the same, if desired, are a series of buckets, M,preferably curved in transverse section, which buckets are supportedupon spindles f, journaled in one of the ends of the reel-in thisinstance the tail end-and upon crank-arms 9, Figs. 2, 5, and 6, whichcrank arms extend through and have bearing in the opposite end of thereel-in this instance the head end. The outer ends of these crank-armsmay be pro vided with friction-rollers h, as seen in Fig. 6, and areconfined between two adjustable rings, M, which may. be adjusted by anysuitable means, and which are attached to the inside of the end of thebolting-chest, so as to form a substantially circular slot eccentric tothe axis of the reel, as seen more particularly in Fig.

1. The adjustment of the parts is such that as ICO from this that thelowermost bucket at 2 has been inclined with its lower edge toward thecloth to scoop up the flour. At 3, 4, and 5 it becomes gradually moreinclined, so as to hold the flour close to and against the surface ofthe cloth. From 6 to 8 it gradually becomes horizontal to retain theflour within it and carry it beyond the top center of the reel, and from9 to 12 it discharges the flour upon the descending side of the reel,and in this way a large portion of the surface of the bolting-cloth iscaused to be utilized at the same moment of time, which greatlyfacilitates the bolting of the flour.

Secured to or formed integral with the in ner side of the tail end H ofthe reel are as many substantially radial troughs or discharging-chutesN as may be desired. The inner ends of these chutes just clear the boxD, and they are so arranged that they gather up the tailings and emptythemintothebox D,which, unlike the box 0, has an inner end walhj, asseen in Figs. 2 and 3, and an open top orlnouth to receive the tailings,which are then discharged by the conveyer-blade at out through theopening b.

In Figs. 7 and 8 my invention is shown applied to a double reel, which,in addition to the construction above described,has two rings, OP,fittedbut free to turn independently upon the ends G These rings are connectedby the tie-rods thus constituting a frame-work, around which the outerbolting-cloth, R, is stretched, and to which it issecured in anysuitable manner. The former of these rings, 0, has upon its outer side agear -ring, S, with which meshes a pinion, T, upon ashaft, U, secured inany suitable journal, V, the outer end of which shaft is provided with apulley, W, from which a belt, Y, extends and passes over a pulley, Z,keyed upon the shaft E. In this manner the outer reel is driven atalower rate of speed than the inner one, and by twisting the belt Y areverse motion may be given to it, if desired. It will be observed thatin this construction the cam-guidesit'and crank-arms g are applied atthe tail end of the reel.

here a single reel is used, a belt extends fromthe pulley Z to andaround pulleys m upon the ends of the conveyershafts in the box B.

Where, as in Figs. 7 and 8, the double reel is employed, a belt, it, mayextend from a pulley, 0, upon the shaft U, down and around theconveyer-pulleys m.

To aid in supporting the rings 0 l? and preventing friction with theends G H, I employ friction-rollers p, which journal in the framework oneach side, bearing against and under the outer side of the rings 0 P,and serve to support the same.

Having thus fully described my invention, I claim- 1. In a flour-bolt,the combination, with the bolting-reel, of a series of internaloscillating buckets hung therein, projections on the end of the buckets,and a cam at the end of the bolt, with which the projections at alltimes engage to cause the positive oscillation of the buckets andpositively control their position at all times, substantially asdescribed.

2. The combination, with a bolting-reel, of a series of bucketsjournaled therein and provided at one end with crank-arms, and a cam,with which said crank-arms are at all times engaged,so arranged as tocause the positive oscillation of the buckets and at all timespositively control their position, substantially as described.

3. In a flour-bolt, the combination, with the reel, of the seriesofoscillating buckets therein, each provided with a projection, and acircular cam-groove at one end of the bolt, with which said projectionsengage, arranged eccentric to the axis of the reel, whereby the positionof the buckets is at all times positively regulated and controlled,substantially as described.

4. In a flour-bolt, the combination, with the reel, ofthe series ofoscillating buckets therein, each provided with a projection, and acamgroove,with which said projections co-operate, and which regulatesand controls their position at all times, so arranged with reference tothe direction of rotation of the reel as to cause the buckets to carryup the material and gradually pour it on the descending side of thereel, substantially as described.

5. The combination of a bolting-reel, a series of pivoted elevatorbuckets therein, which carry chop to the upper portion of the reel, anda cam for controlling the position of the said buckets at all times, soarranged as to discharge their contents upon the cloth upon thedescending side of the reel, substantially as described.

6. The combination of an inner reel, selfadjusting oscillating bucketstherein, rings fitted and free to revolve upon the ends of the innerreel, one ring being formed with internal gear-teeth, tie-rodsconnecting the rings, an outer bolting-cloth attached to the rings, apinion meshing with the gear-teeth and driven from the inner reel, androllers supporting the ring at each side of the pinion, substantially asand for the purpose described.

HENRY J. GILBERT.

Witnesses:

WALTER S. WOLLASTON, CHAS. H. SCHAEFFER.

IIC

